Platform for handling multiple email accounts and better email services

Hi guys,

I was thinking of an idea to create a platform for managing multiple email accounts of a person. Most of the time it becomes difficult to check every email account and important mails get missed.

How about this idea and what else can we upgrade in this other than email management and more refined segregation of mails? What email services do you use other than Gmail and outlook?

Services like -

Handling multiple email services in one.

Better algorithm for spam detection.

Importance of an email is decided based on content plus and the number of exchanges between a sender and reciever.

Multiple reminders for important emails

maybe adding Auto reply feature

Sending emails through voice

What else you may suggest?

Please let me know in comments.

Thank you